Dear Sapna,
Form various committees like sport,canteen,transport,women,welfare which shall be included 60% workers,30% staff(mainly accounts,HR,Purchase,maintenance etc) & let them take the decisions with majority after discussion in committee meetings.But final authority shall be with you only which you have to handle diplomatically.
Also conduct small ceremony to announce worker/star of the month & during this ceremony u can have monthly B'Day celebration also.
Once in a month organize Family Day (Emp Code wise) where max 4 workers' families (Husband/Wife,2 Children,Parents) can visit company to see its operation/function. During this visit u also can organise few indoor games which can be played with worker & his family.Involve Factory Head/Director also in this event. Arrange transport facility to pick-Drop workers' family from Home to Company & give full day leave with wages to those workers.
Make a group of workers (15 to 20 ) & conduct in-house Supervisory Development Program or Behavioral Training where few funny videos,Motivational clips etc are showed with our planned training contents.
Regards
Yogesh